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Method for detecting motion trails of particles in pulmonary alveoli

A technology of motion trajectory and detection method, which is applied in the field of detection and can solve the problems of low accuracy of particle trajectory

Active Publication Date: 2014-09-17
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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Problems solved by technology

[0004] Based on this, it is necessary to provide a method for detecting the trajectory of particles in the alveoli to solve the problem of low accuracy in obtaining particle trajectory

Method used

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  • Method for detecting motion trails of particles in pulmonary alveoli
  • Method for detecting motion trails of particles in pulmonary alveoli
  • Method for detecting motion trails of particles in pulmonary alveoli

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0029] like figure 1 As shown, it is a schematic flow diagram of an embodiment of the detection method for the trajectory of particles in the alveoli of the present invention, including steps:

[0030] Step S101: performing grid modeling on the alveoli according to the geometric data of the alveoli, and establishing a dynamic grid model of the alveoli;

[0031] The geometric data of alveoli may refer to the geometric data of a certain segment of alveoli. The geometric data may include: tube length parameters, lumen diameter, alveolar diameter, center distance between two alveoli, alveolar opening angle, and respiratory parameters. For example, it could be the 18th alveolar. The geometrical data may include: the tube length is 740 μm, the lumen diameter is 320 μm, the alve...

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Abstract

The invention provides a method for detecting motion trails of particles in the pulmonary alveoli. The method includes the steps of firstly conducting mesh modeling on the pulmonary alveoli according to geometric data of the pulmonary alveoli and establishing a pulmonary alveoli dynamic mesh model, secondly conducting air flow field simulation in the pulmonary alveoli dynamic mesh model and obtaining the speed of the air flow field, thirdly simulating the particles of the pulmonary alveoli according to the air flow field speed of the pulmonary alveoli and obtaining a particle numerical simulation model, and finally determining the motion trails of different particles in the pulmonary alveoli under different stress conditions in steady and unsteady air flow according to the particle numerical simulation model. According to the method, accuracy in obtaining the motion trails of the particles in the pulmonary alveoli is improved, and therefore the particle deposition law can be determined according to the motion trails of the particles with different sizes under different stress conditions, and the drug property of aerosols can be improved.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a detection method for particle movement tracks in alveoli. Background technique [0002] The main function of human respiration is to provide oxygen to various tissues of the body and remove carbon dioxide waste gas. The respiration process of the human body can be divided into two stages: the gas is delivered from the external environment to the blood; the gas enters various tissues through the blood. With the continuous progress of society and economy, human beings have continuously improved the quality requirements of the living environment, and their awareness of the protection of the living environment has gradually increased. Particulate pollution caused by industrial production and environmental degradation has become one of the important indicators for evaluating the quality of life and air quality. In atmospheric aerosol particle pollution, some of the tiny aerosol p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 李德波徐齐胜刘亚明
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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